Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
120025goodexcellent71excellent
110020goodexcellent61excellent
100028goodexcellent61excellent
090025goodexcellent51excellent
080016goodexcellent51excellent
070020goodexcellent51excellent
060014goodexcellent51excellent
050017goodexcellent51excellent
040016goodexcellent51excellent
030023goodexcellent51excellent
020022goodexcellent51excellent
010022goodexcellent61excellent
000023goodexcellent51excellent
230023goodexcellent51excellent
220021goodexcellent51excellent
210019goodexcellent41excellent
200016goodexcellent41excellent
190014goodexcellent41excellent
180013goodexcellent41excellent
170014goodexcellent41excellent
160020goodexcellent51excellent
150020goodexcellent51excellent
140015goodexcellent51excellent
130022goodexcellent41excellent